1. Depends on how bad the tank is I would just replace. There are rust cleanout solutions and tank sealers you can find on eBay but sometimes its more hassle than its worth.
2. You shouldn't need to rejet. Just stick an UNI filter on it and be done.
3. Not sure what you mean by nerf bars. Some of the trikes you could get cargo racks for the front and rear but they are hard to find and not sure if it was an option on your. I have a 185s and I know you could get a rear rack which I would love to find if anyone out there has one.
Anyway hope this helps.
Last edited by prometheus; 05-14-2014 at 12:49 PM.
Reason: typo
Currently Own
'85 Honda Big Red 250es
'84 Honda Big Red 200es
'81 Honda ATC 185s
Unk yr Adventure Vehicles 3 wheeler